/**
 * code.css — Code Block & Syntax Styles
 * ═══════════════════════════════════════════════════════════════
 * Inline code, fenced code blocks, copy button, line numbers,
 * and Mermaid/Kroki diagram containers.
 * ═══════════════════════════════════════════════════════════════
 */

/* ── 1. Inline Code ──────────────────────────────────────────── */
code:not(pre > code) {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.82em;
  padding: 0.1em 0.35em;
  background: var(--mb-surface-2);
  color: var(--mb-accent-bright);
  border: 1px solid var(--mb-border);
  border-radius: var(--pico-border-radius-sm);
}

/* ── 2. Code Blocks ──────────────────────────────────────────── */
/* Non-scrolling shell — copy button mounts here and stays pinned */
.pre-copy-wrapper {
  position: relative;
  margin: 1.25rem 0;
}

pre {
  position: relative;
  background: var(--mb-surface-1) !important;
  border: 1px solid var(--mb-border);
  border-radius: var(--pico-border-radius);
  padding: 1rem 1rem 1rem 1rem;
  overflow-x: auto;     /* scrolls, but button is on the wrapper above */
  margin: 0;            /* wrapper handles margin */
  font-family: "JetBrains Mono", monospace;
  font-size: 0.83rem;
  line-height: 1.6;
}

/* .highlight (Hugo chroma wrapper) — never scrolls; button mounts here */
.highlight {
  position: relative;
  margin: 1.25rem 0;
}
.highlight pre {
  overflow-x: auto;
  margin: 0;
}

pre code {
  background: transparent !important;
  border: none !important;
  padding: 0 !important;
  font-size: inherit;
  color: var(--mb-text) !important;
  border-radius: 0 !important;
}

/* Language label */
pre[data-lang]::before {
  content: attr(data-lang);
  position: absolute;
  top: 0;
  right: 2.5rem;
  font-size: 0.65rem;
  font-family: "JetBrains Mono", monospace;
  color: var(--mb-text-faint);
  padding: 0.2rem 0.4rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--mb-border);
  border-left: 1px solid var(--mb-border);
  background: var(--mb-surface-2);
  border-radius: 0 0 0 var(--pico-border-radius-sm);
}

/* ── 3. Syntax Highlighting (Chroma / Hugo) ──────────────────── */
/* Maps Matte Black Zed syntax colors to Hugo/Chroma classes */

/* Keywords → green */
.chroma .k, .chroma .kc, .chroma .kd, .chroma .kn,
.chroma .kp, .chroma .kr, .chroma .kt {
  color: #059669;
}

/* Strings → text (eaeaea) */
.chroma .s, .chroma .sa, .chroma .sb, .chroma .sc,
.chroma .dl, .chroma .sd, .chroma .s2, .chroma .se,
.chroma .sh, .chroma .si, .chroma .sx, .chroma .sr,
.chroma .s1, .chroma .ss {
  color: #EAEAEA;
}

/* Numbers → gold/info */
.chroma .m, .chroma .mb, .chroma .mf, .chroma .mh,
.chroma .mi, .chroma .il, .chroma .mo {
  color: #EFBF04;
}

/* Functions → amber */
.chroma .nf, .chroma .fm { color: #F59E0B; }

/* Types → bright amber */
.chroma .nc, .chroma .nn { color: #FBBF24; }

/* Variables → amber dark */
.chroma .n, .chroma .nb, .chroma .bp { color: #D97706; }

/* Operators → muted */
.chroma .o, .chroma .ow { color: #bebebe; }

/* Comments → faint italic */
.chroma .c, .chroma .ch, .chroma .cm, .chroma .c1,
.chroma .cs, .chroma .cp, .chroma .cpf {
  color: #8A8A8D;
  font-style: italic;
}

/* Tags (HTML/XML) → green */
.chroma .nt { color: #059669; }

/* Attributes → amber dark italic */
.chroma .na { color: #D97706; font-style: italic; }

/* Punctuation → muted */
.chroma .p, .chroma .pi { color: #8A8A8D; }

/* Preprocessor / directives → blue */
.chroma .cp, .chroma .bp { color: #3B82F6; }

/* Error */
.chroma .err { color: #DC2626; }

/* Code block background */
.chroma { background: var(--mb-surface-1) !important; }

/* ── 4. Keyboard shortcut */
kbd {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75em;
  padding: 0.15em 0.4em;
  background: var(--mb-surface-2);
  border: 1px solid var(--mb-border);
  border-bottom-width: 2px;
  border-radius: var(--pico-border-radius-sm);
  color: var(--mb-text);
}

/* ── 5. Mermaid Diagrams ─────────────────────────────────────── */
.mermaid {
  background: var(--mb-surface-1);
  border: 1px solid var(--mb-border);
  border-radius: var(--pico-border-radius);
  margin: 1.25rem 0;
  overflow: visible;     /* outer container never scrolls */
  position: relative;
  padding: 2.75rem 0.75rem 0.75rem; /* top room for toolbar */
}

/* Inner wrapper — this scrolls when SVG is zoomed > 100% */
.mermaid-scroll-inner {
  overflow-x: visible;
  overflow-y: visible;
  user-select: none; /* prevent text selection while panning */
}

.mermaid svg {
  /* Natural render: full width, proportional height */
  display: block;
  width: 100%;
  height: auto;
  max-width: none !important; /* override Mermaid 10's inline max-width */
}

/* Zoom toolbar — anchored to outer container, never scrolls */
.mermaid-toolbar {
  position: absolute;
  top: 0.4rem;
  right: 0.4rem;
  display: flex;
  gap: 0.25rem;
  z-index: 10;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.mermaid:hover .mermaid-toolbar {
  opacity: 1;
  pointer-events: auto;
}
.mermaid-toolbar button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  padding: 0;
  background: var(--mb-surface-2);
  border: 1px solid var(--mb-border);
  border-radius: 3px;
  color: var(--mb-text-muted);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  outline: none;
  box-shadow: none;
}
.mermaid-toolbar button:hover {
  color: var(--mb-accent);
  border-color: var(--mb-accent);
}

/* ── 6. Kroki Diagrams ───────────────────────────────────────── */
.kroki-shortcode {
  border: 1px solid var(--mb-border);
  border-radius: var(--pico-border-radius);
  padding: 1rem;
  margin: 1.25rem 0;
  background: var(--mb-surface-1);
  overflow-x: auto;
  text-align: center;
}

.kroki-caption {
  font-size: 0.78rem;
  font-family: "JetBrains Mono", monospace;
  color: var(--mb-text-faint);
  margin-bottom: 0.75rem;
  text-align: left;
}

.kroki-shortcode svg { max-width: 100%; height: auto; }

.kroki-loading {
  color: var(--mb-text-faint);
  font-size: 0.8rem;
  font-family: "JetBrains Mono", monospace;
  padding: 1rem;
}

.kroki-error {
  color: var(--mb-red);
  font-size: 0.8rem;
  font-family: "JetBrains Mono", monospace;
  border: 1px solid var(--mb-red);
  padding: 0.5rem 0.75rem;
  border-radius: var(--pico-border-radius-sm);
  background: var(--mb-red-bg);
}